Blind-hinge



(No Model.)

A. DAVIS.

BLIND HINGE. No. 434,323. Patented Aug. 12, 1890.

Wih esscs UNITED. STATES PATENT OFFICE.

ARTHUR DAVIS, OF OGDENSBURG, NEW YORK.

BLIND-HINGE.

SPECIFICATION forming part of Letters Patent No. 434,323, dated August 12, 1890.

I Application filed September 18, 1889. Serial No. 324,316. (No modeld 1'0 all whom it may concern.-

Be it known that I, ARTHUR DAVIS, a citizen of the United States, residing at Ogdensburg, in the county of St. Lawrence and State of New York, have invented a new and useful Blind-Hinge, of which the following is a specification.

The invention relates to improvements in blind-hinges.

The object of the present invention is to provide a blind-hinge of simple and inexpensive construction adapted to be locked in its open position and to be moved freely without liability of separating its leaves, and capable of permitting the window-sash to be taken from the frame without necessitating the removal of the blinds.

The invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claim hereto appended.

In the drawings, Figure 1 is a perspective view of a hinge constructed in accordance with the invention. Fig. 2 is a similar view showing the parts locked in their open position. Fig. 3 is a vertical sectional view, the parts being in the position shown in Fig. 2. Fig. 4 is a horizonal sectional view of the same.

Referring to the drawings, A designates a hinge, constructed of suitable metal, and composed of the leaf A, which is attached to one of a pair of blinds, and the leaf A which is secured to the window-frame. The leaf A, which is attached to the window-shutter, has

'an outwardly-extending arm a, which projects beyond the straight edge a of the leaf, and has upon its lower flat surface a pintle B, which is preferably formed integral with the arm. The arm a has upon its lower face, near its outer edge, a lug C, which is formed integral with it and the pintle B, and when the leaf A is swung back in opening the blind the lug C engages in the open top cl of a socket or eye D in the arm of the leaf A and locks the leaves in that position. The socket D consists of a box-like casing which has an open top (Z, the inner side of which conforms to the configuration of the lug O and is adapted for its reception. The lower face or bottom of the casing is provided with a circular opening (1', through which projects the pintle B, and in order to prevent the leaf A from riding too high and becoming separated from the leaf A while the blind is being opened a projection a is provided upon the upper portion of the leaf A which projection engages the upper side of the arm aand allows the leaf A only a limited vertical movement. The arm a is provided with a curved notch a which permits the separation of the leaves when the projection is brought directly above it. The socket or eye which receives the pintle is so situated as to allow the blind to swing back clear of the win- 7 d of sufficient size to receive the pintle of the other leaf, and having its top entirely open and the upper surface of its walls flat, and the leaf A, provided with an outwardly-extending arm a, having its lower surface flat and provided with a depending pintle B and a lug 0, extending from the pintle, said lug riding upon the upper surface of the wall of the box-like socket until directly over the opening thereof and dropping down and lying entirely within the socket, as set forth.

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in presence of two witnesses.

ARTHUR DAVIS.

Witnesses:

S. W. BAILIE, S. W. SEWARD. 

